New design for road signs improves visibility and safety for drivers
Traffic signs need to be easily seen and read by drivers, especially at night. To make signs more visible, they are designed to reflect light from headlights back towards the driver. During the day, signs are visible without extra light sources. There are two types of signs: vertical signs with messages on a plate, and horizontal signs like road markings. Recent research focuses on how well drivers can see vertical signs during the day.